Whenever you want to know
+ how many days (or years, months, days) you have lived in this world,
+ or how many days are left till His/Her bithday,
+ or how long lasted Word War I,
+ or the project you have been working on,
+ or what date will it be 3 years, 5 months and 23 days from now
+ or was 55 year, 9 months, 19 days ago -
DaysCalc will give you the answer.
Designed for simplicity of use, DaysCalc offers
the most efficient and foolproof data entry:
you never do more than 4 taps for a year,
or 2 taps for a month or day.
This version of DaysCalc for the Windows App Store uses
the proleptic Gregorian calendar
from 0001-01-01 AD to 9999-12-31 AD.
The last computation is preserved, and is displayed
in the wide tile of your Windows Start Screen.
(You need to add the DaysCalc tile to the Star Screen,
and to select the Wide tile size).
The results can be shared using the Share Charm with any application that can accept plain text input.